CN102891510A

CN102891510A - Status indicating electric vehicle charging station

Info

Publication number: CN102891510A
Application number: CN2012102484946A
Authority: CN
Inventors: J.德贝尔; J.Q.科万斯; T.比德日基
Original assignee: Siemens Building Technologies AG
Current assignee: Siemens Building Technologies AG; Siemens Industry Inc
Priority date: 2011-07-19
Filing date: 2012-07-18
Publication date: 2013-01-23
Anticipated expiration: 2032-07-18
Also published as: US20150145479A1; MX2012007364A; CA2783257A1; CN102891510B; CA2783257C; EP2548758A3; US9597970B2; US20130021162A1; EP2548758A2; US9597967B2

Abstract

An electric vehicle charging apparatus is disclosed. The electric vehicle charging apparatus has a housing having a body, and a light guide assembly adapted to display a status of the electric vehicle charging apparatus. The light guide assembly generates and displays one or more colors, flashing lights, or combinations thereof on a light exit region of the light guide.

Description

State, photoconduction assembly and the method at indication electric vehicle charging station

Related application

The application requires the U.S. Provisional Patent Application sequence number the 61/509th that is entitled as " LIGHTING SYSTEM AND METHOD OF PROTECTING USER IN ELECTRIC VEHICLE INSTALLATIONS " in submission on July 19th, 2011, No. 156 priority, its disclosure integral body is incorporated herein by reference.

Technical field

Present invention relates in general to be suitable for device, system and method to the electric charging of motor vehicle, and relate to particularly charging device for electric vehicle and method.

Background technology

For the arrival of soaring oil prices, auto industry is to select motor vehicle (EV) to react.These EV are advanced by motor (or motor), and this motor (or motor) is powered by rechargeable power supply (for example, battery pack).EV comprise all-electric vehicle and motor vehicle driven by mixed power the two.Motor has the some advantages that are better than internal combustion engine.For example, motor can be changed from about 75% of the chemical energy of battery to come for vehicle provides power, and the efficient of internal combustion engine is quite low.EV does not discharge the blast pipe pollutant when operating with battery mode.Motor provides quiet, level and smooth operation, forces speed and needs relatively low maintenance.

Yet, most of current EV about 100-200 mile that before needs charge again, only can travel.The battery pack of EV recharged fully may consume about 4 to 8 hours.Even quick charge to about 80% capacity also can consume about 30 minutes.In addition, along with the increase of battery pack size, the corresponding charging interval also increases.Can use electric vehicle power supply equipment (EVSE) to carry out the EV charging at possessory dwelling house place, EVSE is commonly called the electric vehicle charging station.

These EVSE can be placed in dwelling house place (for example, in the garage), such as being placed on interior wall or exterior wall, pillar or other structures, and can be conductively coupled to the electrical load center of dwelling house.Existing EVSE may consume for a long time to finish Vehicular charging, and seeks improved charging performance.In addition, settling EVSE may be difficult in some cases.And existing EVSE design does not trend towards user friendly.

Therefore, needs are simple, cost is effective and high performance EVSE, and are used for operation and settle the Innovative method at this electric vehicle charging station.

Summary of the invention

According to first aspect, provide a kind of charging device for electric vehicle.This charging device for electric vehicle comprises housing and the photoconduction assembly with main body, and this photoconduction assembly is installed to main body and is suitable for showing the state of charging device for electric vehicle.

According on the other hand, provide a kind of charging device for electric vehicle.This charging device for electric vehicle comprises housing and photoconduction assembly, this photoconduction assembly be configured to and can operate for generate in the bright dipping zone that is positioned at outside and show the indication charging device for electric vehicle state be selected from the one or more of the group that comprises one or more colors and one or more flashes of light.

According on the other hand, provide a kind of charging device for electric vehicle.This charging device for electric vehicle comprises housing and the lid with main body, this main body has front and rear, and this lid is installed to the front portion of main body rotatably by one or more hinges, these one or more hinges comprise hinge components, and these hinge components are contained in the cover (pocket) of elongation and can operate for sliding towards the rear portion at cover opening when covering.

According on the other hand, provide a kind of charging device for electric vehicle.This charging device for electric vehicle comprises: the housing with main body; Be couple to the lid of main body; The first ante-chamber in the main body and the second ante-chamber, lid can be accessed the first chamber and the second ante-chamber keeps closing when covering when opening by opening; Charge cable, it is from the second ante-chamber out; One or more high voltage electric terminals in the first chamber; The one or more low voltage terminals that comprise in the first ante-chamber; Electrical connection and contactor to the charge cable that is arranged in the second ante-chamber.

According on the other hand, provide a kind of charging device for electric vehicle.This charging device for electric vehicle comprises: the housing with main body; Be couple to the lid of main body; The control panel that covers; Luminance indicating device on the control panel, wherein drowning has electrical connection.

According to another aspect, provide a kind of method that operates charging device for electric vehicle.The method comprises: housing and the photoconduction assembly that is couple to housing are provided, and this photoconduction assembly has the bright dipping zone; And one or more colors, flash of light or the combination that show the state of indication charging device for electric vehicle in the bright dipping zone.

Comprise many exemplary embodiments and the implementation that is expected be used to implementing optimal mode of the present invention by explanation, according to following detailed description, other aspects of the present invention, feature and advantage are still significantly.The present invention that can also have other with different embodiment, and do not departing from fully in the situation of scope of the present invention, its some details can be made amendment aspect various.Therefore, drawing and description will be regarded as illustrative and nonrestrictive in essence.Accompanying drawing is not necessarily drawn to scale.The present invention contains to fall all modifications scheme, equivalent and alternative within the scope of the invention.

Description of drawings

Figure 1A illustrates the front isometric view according to the charging device for electric vehicle of embodiment.

Figure 1B illustrates the front plan view according to the charging device for electric vehicle of embodiment.

Fig. 1 C illustrates the front view according to outside flexible cord (cord) option of the housing of the charging device for electric vehicle of embodiment and some internal parts and electrical connection.

Fig. 1 D illustrates the isometric front view according to the housing of the charging device for electric vehicle of embodiment.

Fig. 1 E illustrates the rear plan view according to the housing of the charging device for electric vehicle of embodiment.

Fig. 1 F illustrates the rear plan view according to rear jack (receptacle) the seat option of the electrical connection of the charging device for electric vehicle of embodiment.

Fig. 2 illustrates the isometric front view according to the charging device for electric vehicle with unshowned charge cable of embodiment.

Fig. 3 A illustrates the front isometric view according to the hinged lid of the charging device for electric vehicle of embodiment.

Fig. 3 B illustrates the front isometric view of the hinged lid of the charging device for electric vehicle of opening fully according to being shown as of embodiment.

Fig. 3 C illustrates the side plan view that is shown as the hinged lid that locks the charging device for electric vehicle of opening according to embodiment.

Fig. 3 D illustrates the part viewgraph of cross-section that is shown as the hinged lid that locks the charging device for electric vehicle of opening according to embodiment.

Fig. 3 E illustrates the front schematic diagram that is shown as the hinge that locks the charging device for electric vehicle of opening according to embodiment.

Fig. 3 F illustrates the isometric view that is shown as the hinged lid that locks the charging device for electric vehicle of opening according to embodiment.

Fig. 4 A illustrates according to the first inner cover of the charging device for electric vehicle of embodiment and the decomposed view of protective cover.

Fig. 4 B illustrates the decomposed view according to some parts of the photoconduction assembly of the charging device for electric vehicle of embodiment.

Fig. 4 C illustrates the front plan view according to the various parts of the charging device for electric vehicle with unshowned hinged lid of embodiment.

Fig. 4 D illustrates according to the lid of the charging device for electric vehicle of embodiment and the cross-sectional side view of photoconduction.

Fig. 4 E illustrates the isometric view of the charging device for electric vehicle that the cover according to embodiment removes.

Fig. 4 F illustrates the isometric view that stops shielding part according to the photoconduction assembly of embodiment.

Fig. 4 G illustrates the isometric front view according to the second printed circuit board (PCB) of embodiment.

Fig. 4 H illustrates the isometric front view according to a plurality of optical channels that stop shielding part of embodiment.

Fig. 4 I illustrates the isometric front view according to the control panel on the lid of the charging device for electric vehicle of embodiment.

Fig. 4 J illustrate according to the charging device for electric vehicle of embodiment, be positioned at the lid that the printed circuit board (PCB) that stops the shielding part back engages on the part cross-sectional side view of control panel.

Fig. 4 K illustrates the part cross section isometric view according to the control panel on embodiment and the lid that printed circuit board (PCB) engages.

Fig. 4 L illustrates the exploded isometric view according to the control panel parts of embodiment.

Fig. 5 A is the electrical diagram according to the electrical system that comprises charging device for electric vehicle of embodiment.

Fig. 5 B is the electrical diagram according to the charging device for electric vehicle of embodiment.

Fig. 6 is the flow chart according to the method for the operation charging device for electric vehicle of embodiment.

Embodiment

Now incite somebody to action in the accompanying drawings illustrated example embodiment of in detail reference.In possible situation, all will use identical Reference numeral to represent same or analogous part in the accompanying drawing.Accompanying drawing is not necessarily drawn to scale.

Current EVSE can comprise very little positioning indicator or lcd screen, with the basic operation state of indication such as charging or time-out.Usually, these little positioning indicators or lcd screen are positioned at the front of EVSE unit.In order to assess the state of EVSE, such as charged state, the user may need very closely near EVSE.In some cases, the unit is may be at dwelling house outside or with a certain distance from dwelling house, or even crosses over garage or other car stowage districts.Like this, the user must closely approach the state with determining unit, namely reads lcd screen or other positioning indicators.

In one or more embodiment of the present invention, the user function and the user feedback that strengthen are provided.Especially, in first aspect according to an embodiment of the invention, provide a kind of EVSE light-emitting device, wherein when the user was in from EVSE a distance, the state of EVSE was easily conveyed to the user.It is 20 meters or farther, 30 meters or farther, 40 meters or farther or even the user of 50 meters or farther place that the state of EVSE can easily be conveyed to distance.Can on one or more perimeters of the housing of EVSE, show significantly shades of colour, and can use this shades of colour to pass on each bar state information about EVSE to user at a distance.In other embodiments, can come indicating status information with flash of light, such as charged state.

For example, in one or more embodiments, the photoconduction assembly of EVSE can generate and show one or more colors and/or the flash of light to user's indicating status in the bright dipping zone that is positioned at outside.The bright dipping zone may be provided in around the housing periphery, around cover.Can provide such as charging completeness, ready, the fault of charging, fault state/type, charging interval postpone, suspend, the state of indication remote access etc.

In one or more embodiments, the photoconduction assembly is fixed to housing body, and especially, be used to sealing to the access of the high voltage region of EVSE that high-voltage part (for example, contactor, high voltage link, high voltage printed circuit board (PCB) and the connection of being connected SAEJ1772) wherein is provided.Therefore, when lid is opened by hinge, be positioned at the following photoconduction assembly of lid and cover high-voltage part, so that the user can not see or touch these parts.Unique addressable parts are one or more splicing ears, and they also can be installed in below the protective cover.

On the other hand, the cover of EVSE is hinged and can easily rotate and to open configuration locking to suitable position, so that user, arrangement personnel or technical staff can settle or maintain EVSE.Although lid can comprise its can be in unsuitable position the function of hinged and rotation, covers still can have and be presented at its lip-deep detailed state information, and this can realize in that any wiring is routed in the situation of lid.

Explain in more detail embodiments of the invention below with reference to Figure 1A-6.

Figure 1A illustrates the embodiment that is installed to such as the charging device for electric vehicle 100 of the structure 101 of wall.Alternatively, housing 102 can be installed to the structure such as column, post, base etc.Charging device for electric vehicle 100 receives electric power by the distribution box that is electrically connected to dwelling house, sub-distribution box, electronic tool box or electric jack (for example, socket) etc. from electric power system or parts.Charging device for electric vehicle 100 is suitable for motor vehicle (EV) 504 chargings (referring to Fig. 5 A).

Charging device for electric vehicle 100 comprises housing 102, and it can be used for dividing internal part effectively, and provides state information to the user.In one aspect, can watch a long way off this state information.In addition, relatively detailed state information can be displayed on the control panel on the housing.

Housing 102 can have main body 104 and lid 105, and described main body 104 has front and rear, and covers 105 front portions of installing rotatably and being coupled to main body 104.Lid 105 can be removable or hinged, leaves housing so that the access to the interior zone of charging device for electric vehicle 100 to be provided so that it can rotate.In one or more embodiments, as shown in Fig. 3 A-3D, one or more hinge 104A can be installed to main body 104 rotatably with lid 105, such as being installed in its top.Lid 105 can comprise lock pin or other fixation features, such as being used for covering the 105 one or more screws that are fastened to main body 104.Prevent that the connection 102T that destroys can be provided on the front portion of housing 102 via the mating holes that passes main body 104 and lid 105.This adds tamper-proof sticker with permission public utilities personnel by these holes and accesses charging device for electric vehicle 100 to prevent undelegated people.

Charging device for electric vehicle 100 comprises charge cable 103 and is suitable for being couple to the electric connector 103C(Fig. 5 A that is positioned at matching connector on the motor vehicle 504).In the embodiment that describes, electric connector 103C can be installed in order to be easy to access the front erection column 105P(Figure 1B that forms on the housing 102) on, cover on 105 such as being installed in.Housing 102 can have suitable shape, so that charge cable 103 can be twined one or many around the periphery of housing 102, and can comprise case lid, this case lid is suitable for integrated structure 101 provides passage, in order to charge cable 103 is remained in the boundary, the spitting image of hose reel.Main body 104 can be made by plastic material, such as fire retardant plastic material (for example, glass-filled, flame-retardant polyester material).Yet in one or more embodiments, lid 105 can be made by the plastics of more attractive, such as not too fire-retardant plastics (for example, the polycarbonate plastic of non-glass filling).In this way, can obtain the wider palette of plastics, can strengthen surface smoothness, and/or can improve injection moulding.Can use other suitable materials.

One or more hinge 104A can allow to cover the 105 relatively freely rotations with respect to main body 104, and can comprise for covering the 105 suitable mechanisms (Fig. 3 A-3F) that are locked in open position.Lid can be hinged to the configuration of opening fully or partially opening.When hinged closing, can use one or more sealing securing member 105F will cover 105 and be fastened to main body 104.Suitable flexible sealing may be provided in main body 104 or covers around 105 the periphery, and is positioned at its intersection so that the interior section of sealing electric vehicle charge device 100 and chamber, to resist water and bad weather, so that outdoor use is possible.

Charging device for electric vehicle 100 can comprise control panel 105C, and it can be positioned at and cover on 105.Control panel 105C allows the user to select various projects via one or more buttons of pressing on the control panel 105C, such as suspending and time of delay.Can be in other functions of control panel 105C access.In addition, on lid 105 the front portion in abutting connection with sign (for example, electric power can with in, ready, the charging, fault, time of delay etc.) can show little status indicator light.Can use other signs.When the user changed setting on the charging device for electric vehicle 100, these little status indicator lights provided immediate feedback to the user.

In addition or alternatively, charging device for electric vehicle 100 can comprise that photoconduction assembly 465(is referring to figure B), it at 105H place, one or more bright dippings zone (for example is suitable for, at one or more apertures place) generate and show one or more colors, one or more flashes of light (for example, one or more colored lights) or aforesaid combination.These bright dipping zones 105H(for example, aperture) enough large, so that can be easily and clearly cross over the room or watch them from appreciable distance (such as 20 meters or farther, 30 meters or farther, 40 meters or farther or even 50 meters or farther place).Bright dipping zone 105H may be provided in a side of housing 102 or more than a side.In the embodiment that describes, bright dipping zone 105H is provided at the opposite side of one or more hinge 104A.As shown in the figure, bright dipping zone 105H may be provided in the housing 102 peripheral segmentations on every side.In the embodiment that describes, extend the position of the hinge of each bright dipping zone 105H around from upper angle, and descend along the side of charging device for electric vehicle 100 at least in part.Can use other aperture configurations.

Can use the various electric arrangement of charging device for electric vehicle 100.A configuration has been shown among Fig. 5 A.When settling, charging device for electric vehicle 100 comprises at least one in the electric loading that is electrically connected to electric power system 500.The number that the number of load can allow with load centre 501 as many, and/or the number that allows with any sub-panel of its electric coupling is as many.Each electric loading can be by its oneself breaker protection, and this circuit breaker can have for example amperage ratings between the about 10A and about 125A.One of circuit branch can comprise the electric loading as charging device for electric vehicle 100.

Charging device for electric vehicle 100 is suitable for providing electric current output with to the electric power source 503(of motor vehicle (EV) 504 for example, battery pack) charging.Here describe among the embodiment, charging can be with 220V.Therefore, can realize charging faster.Can be by charge cable 103 to EV 504 power supplies, this charge cable 103 has the electric connector 103C of the receiving connector that is conductively coupled on the EV 504.As shown in Fig. 5 A, charging device for electric vehicle 100 can directly be inserted in the electric jack 506, and this electric jack 506 is conductively coupled to circuit breaker 520.Charging device for electric vehicle 100 can comprise outside electric flexible cord 128 and suitable external electrical connector 129, such as 240V NEMA plug.Can use other plugs.Therefore, in this embodiment, charging system for motor-driven vehicle 100 is with the wiring of outside flexible cord option and by outside electric flexible cord 128 and external electrical connector 129 power supplies, this provides the outstanding flexibility about the installation position of charging device for electric vehicle 100.Such as the position of the area of coverage outside of term used herein " outside " expression charging device for electric vehicle 100, namely outside but be not the back at charging device for electric vehicle 100.

Alternatively, charging device for electric vehicle 100 can be wired to rear electric jack or be wired to the electronic tool box that is positioned at charging system for motor-driven vehicle 100 back via rear jack base option, namely in the area of coverage of charging device for electric vehicle 100.In another embodiment, charging system for motor-driven vehicle 100 can be spliced directly to the circuit breaker 520 in the main load centre 501, perhaps such as be wired to the sub-panel (not shown) that is conductively coupled to main load centre 501 by conduit.In order to finish this arrangement, cable (for example, 10-3 cable) passes conduit and passes the first wiring entrance 116(referring to Fig. 1 D).Can form the first wiring entrance 116 by removing detachable part (knock out) or changing plug.In the situation of changing plug (it can be sealing plug), (for example, in the time of at the scene), the replacing plug can exchange to the another location in the charging device for electric vehicle 100 when being electrically connected when reconfiguring.In all Installation Options, the wiring of flexible cord or cable is connected to the one or more electric terminals 107 that are provided at the first ante-chamber 106 inside.

Figure 1A to 1F illustrates the parts of charging device for electric vehicle 100.Main body 104 can comprise many inner chambers.The first ante-chamber 106(of main body 104 for example locates in the bottom of charging device for electric vehicle 100) can comprise at least one electric terminal 107.At least one electric terminal 107 can be binding post, post assembly, fast connection, terminal box etc.In the embodiment that describes, show line terminal box 107A and ground connection terminal box 107B.Can use other electric terminal options.The bottom of charging device for electric vehicle 100 has been designed to suitably route and has stopped various electrical connection options.Fig. 1 C and 1D illustrate the inner flexible wiring separation as the first ante-chamber 106, by removing or the hinge of outwarding winding can easily be accessed this inner flexible wiring separation.The large I of this first ante-chamber 106 is appropriately determin to hold single-phase or the three-phase wiring system, such as having ground connection.Fig. 1 D illustrates a flexibility feature, and illustrates tradable binding post interface or terminal 107.Terminal 107(provides the electrical connection between the electric parts of the wiring that enters and charging device for electric vehicle 100) can install via the threaded metal insert in the plastic pattern of for example driving piles.This binding post interface or terminal 107 can be fastened to by suitable securing member the screw thread insert.Can select and utilize various alternative binding post interfaces or terminal design or type by the common mounting platform in the first ante-chamber.

Main body 104 for example can also comprise the second ante-chamber 108(, on top), it is suitable for holding and comprising high-voltage part, such as contactor 109, high voltage link, to connection and one or more printed circuit board (PCB) (for example, circuit board 453) of SAEJ1772 connector.Contactor 109 in the second ante-chamber 108 can be conductively coupled at least one terminal 107, and is conductively coupled to charge cable 103.Contactor 109 can have for example 30A or larger current rating and 208V or larger voltage rating.High voltage printed circuit board (PCB) 453 can receive high voltage (for example, greater than about 110V) from connector 109.

On the other hand, charging system for motor-driven vehicle 100 for example can comprise one or more low voltage terminal 112(, dry contact input and/or output), it can be included in the first ante-chamber 106 and can cover 105 and visit by lifting or removing.Therefore, can to and/or provide the input of various signals and/or data and/or output from low-voltage printed circuit board (PCB) (for example, 456).Alternatively, Ethernet terminal 114(is shown in broken lines in Fig. 1 C) can be provided in the first ante-chamber 106 and can be suitable for the Ethernet cable is connected to printed circuit board (PCB) 456.The hardwire that removable plug 115 in the first ante-chamber 106 can be used for receiving from the rear portion, unit to one or more low-voltage terminal boxes 112 and/or Ethernet terminal 114 connects.

In this way, can provide data communication with home network cable (for example, CAT5e or similar cable), the utility service communications cable etc.For example, in one or more embodiments, state that can telemonitoring charging device for electric vehicle 100 (in for example, power supply, fault, the charging, charged state, charge, delay etc.).In one or more embodiments, utility service can monitor during the high electricity needs period and/or the long-range charging device for electric vehicle 100 of closing.Similarly, home network cable (for example, CAT5e or similar cable) can be connected to the miscellaneous part in domestic automation system, garage control or the family, such as remote switch or circuit breaker etc.

In more detail, the first ante-chamber 106 can separate by dividing wall 110 with the second ante-chamber 108.(one or more) live wire, zero line and ground wire pass the little opening in the dividing wall 110 and are connected to contactor 109.Radio frequency interference (RFI) filter 111 can be used for preventing that high-caliber unwanted radio frequency from entering casing via the line side conductor.RFI filter 111 can be oriented to block and/or partially filled chamber 106,108 between little opening.As shown in the figure, the first wiring entrance 116 is provided at the periphery of main body 104, such as being provided at its bottom.This first wiring entrance 116 is directly connected in the first ante-chamber 106, and can be the circular hole as shown in Fig. 1 D.The first wiring entrance 116 can have for example diameter between the about 20mm and 30 mm.Can use other sizes.

As shown in Fig. 1 E, the main body 104 of housing 102 comprises the first back cavity 120, and can comprise the second back cavity 122.Main body 104 can comprise the mounting characteristic that is suitable for charging system for motor-driven vehicle 100 is installed to structure 101.These mounting characteristics can comprise upper shell mounting characteristic 119 and lower house mounting characteristic 121, and they can be shaped tab for example.The first back cavity 120 can be positioned at a side of main body 104 and can be for example extend to the bottom from the top of main body 104.The first back cavity 120 can be formed by lateral wall 123, madial wall 124 and midfeather 125 at least in part.The opposite side of midfeather 125 forms the part of the first ante-chamber 106 and the second ante-chamber 108.The second back cavity 122 can be configured to and be suitable for receiving charge cable 103 and thru adapter 103S.Thru adapter 103S can be the thru adapter of sealing.

Illustrate one among Fig. 1 C and settled configuration.The first wiring entrance 116 can receive for example has the external electrical connector 129(that couples, the NEMA plug) outside electric flexible cord 128, near the electric jack 508 this external electrical connector 129 is suitable for being inserted into (referring to Fig. 5 A).Electric jack 508 can be by suitable ground fault circuit cutout (GFCI) protection.Outside electric flexible cord 128 and external electrical connector 129(for example, 240V dry type plug) can be suitable for carrying for example 220V.As shown in Fig. 1 C, any suitable connector 128C can be used for firmly fixing outside flexible cord 128 and it is entered and passes the first wiring entrance 116.The connection of especially, passing the first wiring entrance 116 can be to be tightly connected.

Referring again to Fig. 1 E, can provide the second wiring entrance 130.The second wiring entrance 130 can be the hole and the first back cavity 120 can be provided and comprise path between the first ante-chamber 106 of one or more electric terminals 107.This hole can have the size identical with the first wiring entrance 116.Settle among the option embodiment at rear jack base, as shown in Fig. 1 F, can in the first back cavity 120, receive and suitable for example have attached rear plug 133(, the NEMA plug) rear flexible cord 132 and rear plug 133 are suitable for being inserted into and are hidden in main body 104 back and the jack in its area of coverage of main body 104 (for example, wall jack).Mean that in the area of coverage jack is hidden fully when in the past observation orientation is watched.The second wiring entrance 130 can receive thru adapter 134, and it makes rear flexible cord 132 pass the second wiring entrance 130 and enters the first ante-chamber 106, to be used for being electrically connected at least one terminal 107.Thru adapter 134 can be hermetically sealed connector, is completely sealed so that enter the rear wiring entrance 130 of ante-chamber 106.The first wiring entrance 116 can be closed by plug in this embodiment.For example, plug can be removable plug, and can be sealing plug.Alternatively, if do not expect sealed environment, then after flexible cord 132 can pass simply the second wiring entrance 130 and be connected at least one terminal 107 in the first ante-chamber 106.Also show charge cable 103 and the connection of being connected the second back cavity 122 and entering the second ante-chamber 108 via connector 130S among Fig. 1 F.

Settle among the option embodiment at another, from the conductivity cell of the electronic tool box of the back, position that is installed to charging device for electric vehicle 100 (for example, short length 10-3) (for example, 10-12 inch) can be passed the second wiring entrance 130 and is connected at least one terminal 107 in the first ante-chamber 106.In this way, charging device for electric vehicle 100 can be spliced directly to the electronic tool box that is positioned at the back.Again, can use seal feed-through connector (identical with connector 134) to pass the second wiring entrance 130.

Therefore, in all the embodiments described herein, main body 104 structurally is configured to have the first wiring entrance 116 and the second wiring entrance 130, with a plurality of electric power connectivity options of the electrical connection of the electric power that is used for being provided at least one electric terminal 107.A plurality of electric power connectivity options comprise: outside flexible cord option, outside directly wiring option, rear jack base option and rear direct wiring option.

Fig. 2 illustrates the charging system for motor-driven vehicle 100 that is in rear jack base configuration or rear directly wiring configuration.For the sake of clarity removed charge cable 103.Charging system for motor-driven vehicle 100 can comprise the bright dipping as discussed above zone 105H of the opposite side that is positioned at housing 102, and it can be luminous to indicate the state of charging system for motor-driven vehicle 100, such as charging or other situations.

Fig. 3 A-3D illustrates the various views of hinged lid 105.In the embodiment that describes, as shown in Fig. 3 A, control panel 105C can be provided in and covers on 105 the front outer surface.Control panel 105C can allow user and charging system for motor-driven vehicle 100 to provide input alternately and to it.In addition, control panel 105C can provide the state indication to the user.

Fig. 3 B, 3C and 3F illustrate the lid 105 of opening in the configuration.Lid 105 can relatively main body 104 rotations on hinge 104A.In addition, as shown in Fig. 3 D and 3E, one or more hinge components 340 of each hinge 104A can be contained in the cover 342 of elongation, and it allows to cover 105 slips and gets back in the main body 104.Lid 105 can remain on the upright position, and for example leans against structure 101(, wall such as that works among Fig. 3 B) on, perhaps can slide backward, can contact with the roof 344 of cover 342 so that cover the part 105U of 105 downside.Hinge components 340 can be one or more circular columns, and it is from lid extension 105E horizontal expansion.Hinge components 340 and lid extension 105E can be used as one-piece machine member and lid 105 moulding.Alternatively, as shown in Fig. 3 B, extension 105E can be used as the article moulding that separates with hinge components 340, is attached to by securing member and covers 105.Cover 342 can be closed by any suitable structure, divides 468T(referring to Fig. 3 B such as the top of photoconduction 468).Therefore, in Fig. 3 C-3F configuration, lid 105 can remain on the orientation of common level.For closing cap 105 again, the user will pull out simply covers 105, until 468T is divided at the top of hinge components 340 contact photoconductions 468, its middle cover extension 105E can be contained in the top of photoconduction 468 and divide (referring to Fig. 3 B) in the clearance groove that forms among the 468T.

Fig. 4 A illustrates the isometric view of the main body 104 of housing 102, and wherein the first inner cover 451 is illustrated as being removed.The first inner cover 451 can be fixed to the anterior of the second ante-chamber 108 and it is closed.The first printed circuit board (PCB) 453 can reside on the back side of the first inner cover 451 and can be connected with it.The first inner cover 451 can be the specified plastics of suitable burning as indicated above.Second printed circuit board (PCB) 456(Fig. 4 B) is connected to printed circuit board (PCB) 453 by the suitable cable such as flat cable 454.As shown in Fig. 4 A, protective cover 457 is contained in the first chamber 106 and covers one or more electric terminals 107 and protect the user to prevent the high voltage shock hazard.Protective cover 457 can be by making such as flame retardant plastics described herein, and can be fastened to main body 104 by screw etc.

Fig. 4 B illustrates the decomposition view of photoconduction assembly 465.Photoconduction assembly 465 is installed to the main body 104(of housing 102 referring to Fig. 4 C and 4E via securing member) and can be installed on the first inner cover 451.Photoconduction assembly 465 can comprise photoconduction 468 and one or more light source 469 at least.In the embodiment that describes, photoconduction assembly 465 comprises and stops shielding part 458, and the second printed circuit board (PCB) 456.

The second printed circuit board (PCB) 456 can comprise one or more light sources 469 mounted thereto or that otherwise couple with it.Light source 469 can be one or more LED for example, burns LED such as side.In the embodiment that describes, side is burnt LED and is installed along one or more edges of the second printed circuit board (PCB) 456, and usually along outside utilizing emitted light on the direction on the plane of plate.Light source 469 can be transmitted into one or more colored light emitting substances in the photoconduction 468.Light is transported and is presented at one or more bright dipping part 105H place of the outside of housing 102 by photoconduction 468.In the embodiment that describes, one or more light sources 469 can be installed in the opposite side of the second printed circuit board (PCB) 456 and light can be projected to the side of charging device for electric vehicle 100 and/or towards its top projection.

For example, one or more light sources can comprise white, green, redness, blueness, yellow, orange or any other color.Can show state about charging device for electric vehicle 100 with color.For example, below shown color can be used for passing on one of at least: (for example charge ready, charged state, the percentage of the charging capacity of unit), the charging completion status (for example, 25%, 50%, 75%, 100% or the charging finish, and/or the distance that can advance of EV), fault, fault state, remote access situation are (for example, the override pattern), in operator scheme, communication pattern (for example, data communication is carried out), the charging, charging delay time etc.Can show other state informations.

In one or more embodiments, green can be indicated the ready state of charging.In one or more other embodiment, one or more colors can be glimmered with indicating status, such as above-mentioned arbitrary state.For example, the green light of flashing can represent state in the charging, and continuous green light can represent that the charging of charging device for electric vehicle 100 finishes.For example, yellow can represent for example 50% charging.Redness can the indication fault pattern.Blueness can be indicated long-range situation, communicates by letter with charging device for electric vehicle 100 and/or the long-range charging device for electric vehicle 100 of closing such as dwelling house electrical power services provider (for example, utility company) wherein.Can use any combination of flash of light and/or coloured emitting substance.If use more than a bright dipping part 105H, then can glisten together (for example, as one man flash of light) perhaps can replace asynchronously or trigger.Can provide flash of light with any pattern, such as equably or unevenly.In addition, different colours can be presented at each bright dipping part 105H.A bright dipping part 105H can glisten, and another bright dipping part 105H can show pure color light.

Such as best illustrating among Fig. 4 D, can be launched and in photoconduction 468, advance from the light of one or more light sources 469.Photoconduction 468 receives light at direct one or more optical receiving regions 470 places of contiguous one or more light sources 469 location, and light is transported to one or more bright dippings zone 105H along one or more smooth guidance fields 471.One or more optical receiving regions 470 and one or more smooth guidance field 471 can reside in and cover below 105 when lid 105 is closed, and can see that when lid 105 is closed one or more bright dippings zone 105H is adjacent with the edge of lid 105.One or more bright dippings zone 105H can comprise the expansion area, and wherein the thickness of waveguide increases when being transitioned into bright dipping zone 105H.Bright dipping zone 105H can comprise the first forward surface 472 and can comprise backward surperficial 473, and lateral surface 474.Lateral surface 474 can be oriented to them and not leave abreast light guidance field 471 with the direct of travel of light emitting substance.Especially, lateral surface 474 is the light-emitting areas as aperture.Lateral surface 474 should be with respect to angled to be used for the maximum ring effect from the light of waveguide part 471 emissions.The angle of inclination on surface 474 can be selected to so that light beam is crossed over all surface 474 distributions basically.Can use the angle 475 between about 30 degree and 50 degree.Can use other angles.The thickness of light guidance field is along most of length substantial constant, and can be in the thickness between about 2.2mm and about 2.5 mm.Can use other thickness.

In the embodiment that describes, illustrate such as Fig. 4 F and 4G the best, the second printed circuit board (PCB) 456 is positioned and is fixed in the cover, just in time below the lower surface of shielding part 458.This second printed circuit board (PCB) 456 can hold microcontroller 558(Fig. 5 B), side transmitting illuminant (LED) 469, and can comprise front emission LED 476.Light source 469(for example, side emission LED) can be by one or more restricted aperture 477 utilizing emitted lights that in shielding part 458, form.Restricted aperture 477 in the shielding part 458 can be side channel, one or more light sources 469 adjacent positioned that it can be vertically oriented with (when settling), and can be suitable for limiting distribution from the light of one or more light sources 469 emissions.The light emitting substance response that is generated by one or more light sources 469 is from the signal of microcontroller 558, can be delivered in one or more photoconductions 468 at optical receiving region 470 places, light is directed in one or more smooth guidance fields 471, and at 105H place, one or more bright dippings zone utilizing emitted light.Bright dipping zone 105H can be positioned on one or more parts of charging device for electric vehicle 100, so that they are easy to be seen by the user.

In the embodiment that describes, bright dipping zone 105H is positioned at the opposite side of housing 102.Bright dipping zone 105H can comprise the scattering surface processing of the side of opposed face 474, and such as rough surface or other surface discontinuities (for example, little v connected in star), wherein the place of bright dipping is used for being scattered in the light that send at this place.The surface scattering surface treatment can provide matte surface at some or all of bright dippings zone 105H.Scattering surface is processed can be for example more coarse than the surface of light guidance field 471.Scattering surface is processed and can followingly be provided: the position at the mould of the lateral surface 474 that forms at least bright dipping zone 105H makes the mould of photoconduction 465 moulding carry out bead-blast to being used for.Photoconduction 468 can be made by the transparent material such as transparent plastic.These plastics can be for example polycarbonate resin thermoplastics, polyacrylate or other suitable transparent plastic materials.Photoconduction 468 can comprise core 478, and it is adapted to fasten to shielding part 458, so that light source is suitably aimed at optical receiving region 470.

Fig. 5 B illustrates the block diagram of the example embodiment of charging device for electric vehicle 100.Charging device for electric vehicle 100 can comprise maximum amperage configuration switch 564, and it is used for restriction EV 504 can be from the maximum amperage of charging device for electric vehicle 100 requests.Amperage is adjusted feature provides restriction to go to the mechanical means of the electric current of EV 504.Since dwelling house electric power delivery system (for example, the existing restriction of electrical infrastructure load centre), perhaps may make the energy requirement of charging device for electric vehicle 100 cross over the charging method that the wider time in one day carries out " load displacement ", this restriction is expected.

In Fig. 4 B-4C, illustrate amperage and adjust an embodiment of feature 564.In this embodiment, printed circuit-board assembly 456 is positioned and is fixed in the cover, just in time in the lower face of shielding part 458.This printed circuit board (PCB) 456 holds the microprocessor 558 of charging device for electric vehicle 100 and comprises maximum amperage configuration switch 564.In this embodiment, maximum amperage configuration switch 564 can be the multiposition rotary switch.Alternatively, maximum amperage configuration switch 564 can be toggle switch or a series of 2 or 3 position switchs.When the user such as when the screwdriver rotary switch (Fig. 4 E), maximum amperage configuration switch 564 is positioned at EVSE state machine on the printed circuit-board assembly 456 to adjust charge parameter with the signal form notice.These data are delivered to EV 504 via for example industry-standard protocol SAE J1772 subsequently, and the electronic installation restricted passage charging device for electric vehicle 100 of the EV 504 inside amperage of sending.Wherein entrance is recessed so that the design of screwdriver that need to be little has reduced the possibility of unexpectedly adjusting switch 564 in the surperficial back of core 478 by using.This switch 64 can also be covered to reduce the possibility of being adjusted by unqualified end user at the scene by little plastics or epoxy resin workpiece easily.In certain embodiments, can be on switch 564 tops the little protrusion (for example, plastics protrusion) of moulding rotate by hand allowing.Under any circumstance, do not remove cover 105 with the situations that obtain access under, in the embodiment that describes, can not adjust.

Referring again to Fig. 5 B, contactor 109 is connected to charge cable 103, and it ends at electric connector 103C place.Electric connector 103C can be SAE J1772 connector and be suitable for being couple to receiving connector (Fig. 5 A) on the EV 504.Charging device for electric vehicle 100 may further include communication terminal 112, and such as the difference serial port RS485 that is used for data communication, it for example can be provided in the first inner chamber 106.Suitable power supply and adjusting device 579 can be provided on the circuit board 456 or on the circuit board 453.In the embodiment that describes, show the configuration of two plates.Yet, it should be understood that various parts can or be separated into two or more plates a plate combination.In the embodiment that describes, printed circuit board (PCB) 456 can be the low-voltage plate.Mean for example less than about 24V such as low-voltage used herein.Can use the user interface 580 such as one or more promotion buttons, lcd screen, touch screen etc., and it can be suitable for allowing the user to receive and/or being input to charging device for electric vehicle 100.Charging circuit interrupting device (CCID) 581 can be provided as among the standby current carrying conductor difference current and as required to the existence of microprocessor 558 indication earth faults so that personnel protection to be provided, for example according to such as UL 2231.The pause button 582 of separation can be provided and postpone load button 584 to realize the delay charging input of certain amount time of delay (for example, 2,4,6 or 8 hours).Can provide other visual detectors 586 and its be suitable for indicating charging device for electric vehicle 100 whether power, ready, be in malfunction or charging.Can be such as providing other little indicating devices at lid 105.Diagnosis terminal 583 can be used for realizing and the communicating by letter of printed circuit board (PCB) 586.

In certain embodiments, visual detector is provided at and covers on 105 the surface.Now describe visual detector 586,587 configuration in detail with reference to Fig. 4 H and 4I and for the various inputs of charging device for electric vehicle 100.These visual detectors 586,587 can be produced by for example one or more LED.For example, visual detector 586,587 can be provided by for example light source 476 to front projection.Light source 476 can be front burning LED, and it can be installed on the printed circuit board (PCB) 456.Light source 476 can be by a plurality of channelling effect elements 488,489 of forming in stopping shielding part 458 projected light forward, and by cover 105 forward projected light so that state information may be displayed on covers on 105 the surface.Therefore, state may be displayed on and covers on 105 the front portion, so that it can easily be watched by the user.Various little indicator lamps can be based on the states that detects and are luminous.

In Fig. 4 H, shielding part 458 can comprise more than first channelling effect element 488, and it can convey to the state of charging device for electric vehicle 100 and cover 105.Shown state can comprise that electric power can use (for example, orange), charging (for example, green), ready (for example, green) or fault (for example, redness) or suspend (for example, blueness).Can use other colors.Similarly, more than second channelling effect element 489 can convey to the time of delay of charging device for electric vehicle 100 and cover 105, such as 2,4,6 or 8 hours etc.Illustrated among Fig. 1 H about every group of channelling effect element 488, nine passages of 489.Can use some or all of passages.In the position with respect to shielding part 458, such as at a plurality of channelling effect elements 488, one of 489 or both center, can provide the one or more switches 490,491 such as the dome micro switch.Switch 490,491 for example can be installed on the printed circuit board (PCB) 456.Switch 490,491 can be by being installed in button 582,584 operations of covering on 105.

As shown in Fig. 4 J, when pressing button 582, can operate the post 496 that is couple to button 582 with switch 490 physical contacts.This has triggered switch 490.For example, as shown in Fig. 4 I, press the charging that pause button 582 can suspend (or beginning) charging device for electric vehicle 100.Again press and again to begin charging.As one man press button 582,584 both can be used for closing photoconduction assembly 465.Can projected light with indication be attached to cover 105 and the film (for example, polycarbonate film) that contacts with the front portion of button 582 on the halted state of and then word " time-out ".Go out as shown, can according to state (ready, electric power can with in, the charging or fault), come other lamp of four of projections by each channelling effect element in a plurality of channelling effect elements 488.Lamp and the state that can show other numbers.Similarly, press similarly trigger switch 491 and can be used for setting time of delay (for example, 2,4,6,8 hours) of button 584.According to the situation of switch 491, one in each lamp corresponding with in a plurality of channelling effect elements 489 one with luminous.Therefore, positioning indicator can cover the indication lag time on 105.

As shown in Fig. 4 J and 4K, trigger pausing operation and postpone operation and can be undertaken by covering 105.Similarly, the state indication may be displayed on and covers on 105.This still allow to remove or hinged lid 105 in finish so that it can be outwarded winding.With switch 490 on the printed circuit board (PCB) 456,491 contact by the contactor such as post 496 and provide, it is installed to neatly and covers 105 and couple with button 582,584.Post 496 can be the part of button and indicator assemblies 495, and wherein button 582,584 only marks one by one or more such as girder 497() spring element be installed to neatly and cover 105.From light source 476 pass through optical channel 488,489 light can receive in induction element 499 and be communicated to and cover 105 surface.Can use other suitable means of covering 105 surface for light is communicated to.Control panel screen board 492 can provide (for example, adhering to) the lid 105 on and be provided at button 582,584 and button and indicator assemblies 495 on.This is so that button and indicator assemblies 495 are located at covers in 105 in the recess 498 that forms.Control panel screen board 492 can be film, flexible sheet material or forming elastic body member (for example, opaque rubber or silicones).Button 582,584 can be that any suitable shape and size and its post 496 can have any suitable shape with contact-making switch 490,491.Various effective induction elements 499 are aimed at the transparent apertures in the screen board 492.Therefore, should be appreciated that this embodiment of the present invention allows to need not for any electrical connection of covering covering display status information on 105 with luminous form.Therefore, drowning has electrical connection.In addition, according to each aspect of the present invention, detailed status information may be displayed on to be covered on 105, and overall status information can be presented at one or more bright dipping part 105H place via one or more colors, one or more flashes of light or their combination that show.

In certain embodiments, charging device for electric vehicle 100 can comprise communication module 567, and it is suitable for and other equipment or Radio Communication.EVSE communication module 567 can have communication module of being connected to 567 and be suitable for sending and receiving from equipment or system to equipment or system according to suitable agreement the antenna 570 of wireless signal 568.For example, communication module 567 can be used for utility intelligent grid node, utility intelligence instrument, home computer network, electric loading panel, Internet portal radio communication in order to be linked to the service provider, with such as execution diagnosis, software upgrading etc.Can use any suitable communication protocol, such as ZigBee, Wi-Fi, Wi-MAX, bluetooth, Dash 7, EnOcean etc.

Now with reference to Fig. 6 method of the present invention is described.The operation charging device for electric vehicle (for example, charging device for electric vehicle 100) method 600 comprises: in 602, provide housing (for example, 102) and the photoconduction assembly that is couple to housing (for example, 565), the photoconduction assembly has the bright dipping zone (for example, 105H), and in 604, and show one or more colors, flash of light or the combination of the state of indication charging device for electric vehicle in the bright dipping zone.For example, can show multiple color at bright dipping zone 105H, such as green and green, red and red, yellow and yellow or blue and blue.Can show other colors.Can show in another embodiment two kinds of different colors, such as showing a kind of color at each bright dipping zone 105H, such as green and yellow or green and blue, green and red or green and orange.Can use other color combination.Moreover the one or more lamps that show at 105H place, bright dipping zone can glisten.For example, the flash of light green light can be provided on two bright dipping zone 105H, the yellow of perhaps glistening can be provided on two bright dipping zone 105H, and the blueness of perhaps glistening can be provided on two bright dipping zone 105H, and the redness of perhaps glistening can be provided on two bright dipping zone 105H.In another embodiment, flash of light green and amber light can be provided on two bright dippings zone 105H, perhaps flash of light green and yellow can be provided on two bright dippings zone 105H, perhaps flash of light green and blueness can be provided on two bright dippings zone 105H, and perhaps flash of light redness and yellow can be provided on two bright dipping zone 105H.Can use other combinations of flash of light colored lamp.Photoflash lamp can for example replace or synchronously, perhaps have the pattern of restriction.Other combinations of any above content can be used for the expression state.

Those skilled in the art should easily recognize, the present invention allows and utilizes widely and use.According to the present invention and the description of front, in the situation that does not depart from essence of the present invention or scope, of the present invention many described embodiment and adjustment except the embodiments described herein, and many variations, modification and equivalent arrangements will be significantly, perhaps reasonably be advised by it.Therefore, although describe the present invention in detail with reference to specific embodiment here, will understand, the disclosure only is illustrative and has presented example of the present invention, and only is used for providing complete and effective disclosed purpose of the present invention.The disclosure is not to be intended to make the present invention to be limited to disclosed concrete system or method, but opposite, is intended to contain to fall within the scope of the invention all modifications scheme, equivalent and alternative.

Claims

1. charging device for electric vehicle comprises:

Housing with main body; And

The photoconduction assembly, the state that it is installed to described main body and is suitable for showing described charging device for electric vehicle.

2. charging device for electric vehicle according to claim 1, wherein said state comprise following one of at least:

It is ready to charge,

Charged state,

In the charging,

Charging completeness state,

Fault,

Fault state,

Charging delay,

The charging delay time,

Suspend,

Operator scheme,

Communication pattern, and

The remote access situation.

3. charging device for electric vehicle according to claim 1, wherein said photoconduction assembly comprises:

Photoconduction, it has and is oriented to the optical receiving region adjacent with one or more light sources, light guidance field and bright dipping zone.

4. charging device for electric vehicle according to claim 3, wherein said bright dipping zone comprises rough surface.

5. charging device for electric vehicle according to claim 3, wherein said bright dipping zone comprise the side surface with the angle between about 30 degree and 50 degree.

6. charging device for electric vehicle according to claim 1, wherein said photoconduction assembly comprises:

One or more light sources; And

Shielding part has one or more restricted apertures, and it is oriented to adjacent with described one or more light sources and is suitable for limiting from the distribution of the light of described one or more light sources emissions.

7. charging device for electric vehicle according to claim 1, wherein said photoconduction assembly comprises:

One or more light sources;

Shielding part; And

8. charging device for electric vehicle according to claim 1, wherein said photoconduction assembly comprises photoconduction and is suitable for light is transmitted into one or more light sources in the optical receiving region of described photoconduction that wherein said one or more light sources are installed to printed circuit board (PCB).

9. charging device for electric vehicle according to claim 1, wherein said main body comprises that the first ante-chamber and the second ante-chamber and described photoconduction assembly are installed on described the second ante-chamber.

10. charging device for electric vehicle according to claim 9 comprises the first inner cover that covers the second ante-chamber, and wherein said photoconduction assembly is installed on described the first inner cover.

11. charging device for electric vehicle according to claim 1, wherein said photoconduction assembly comprises photoconduction, and described photoconduction comprises transparent material.

12. charging device for electric vehicle according to claim 1 comprises the lid at least a portion that is contained in described photoconduction.

13. charging device for electric vehicle according to claim 1, comprise photoconduction, described photoconduction has and is oriented to the optical receiving region adjacent with one or more light sources, light guidance field and bright dipping zone, wherein described optical receiving region and described smooth guidance field reside in below the described lid when described cover is closed, and can see the described bright dipping zone at the edge that is adjacent to described lid when described cover is closed.

14. charging device for electric vehicle according to claim 1 comprises the lid that is hinged to described main body.

15. a charging device for electric vehicle comprises:

Housing; And

The photoconduction assembly, its be configured to and can operate for generate in the bright dipping zone that is positioned at described outside and show the described charging device for electric vehicle of indication state be selected from the one or more of the group that comprises one or more colors and one or more flashes of light.

16. charging device for electric vehicle according to claim 15, wherein said state comprise following one of at least:

It is ready to charge,

Charged state,

In the charging,

Charging completeness state,

Fault,

Fault state,

Charging delay,

The charging delay time,

Suspend,

Operator scheme,

Communication pattern, and

The remote access situation.

17. a charging device for electric vehicle comprises:

Housing with main body, described main body has front and rear; And

Be installed to rotatably the lid of the front portion of described main body by one or more hinges, described one or more hinge comprises hinge components, and described hinge components is contained in the cover of elongation and can operates for sliding towards the rear portion at described cover when opening described lid.

18. a charging device for electric vehicle comprises:

Housing with main body;

Be couple to the lid of described main body;

The first ante-chamber in the described main body and the second ante-chamber, by open that described lid can be accessed described the first chamber and when opening described lid described the second ante-chamber keep closing;

From described the second ante-chamber charge cable out;

One or more high voltage electric terminals in described the first chamber;

Be included in the one or more low voltage terminals in described the first ante-chamber; And

Electrical connection and contactor to the described charge cable that is arranged in described the second ante-chamber.

19. a charging device for electric vehicle comprises:

Housing with main body;

Be couple to the lid of described main body;

The described control panel that covers; And

Luminance indicating device on the described control panel, wherein said drowning has electrical connection.

20. a method that operates charging device for electric vehicle comprises:

Housing and the photoconduction assembly that is couple to described housing are provided, and described photoconduction assembly has the bright dipping zone; And

Show one or more colors, flash of light or the combination of the state of the described charging device for electric vehicle of indication in described bright dipping zone.